MNIST example in Python, also example of conv2d
MNIST example in Python, also example of conv2d


Former-commit-id: 23cb8def4fefc84945bc7c9c0a58dda2c4a4a2e7
xunzhang/dynet,clab/dynet,danielhers/dynet,chunyang-wen/dynet,chunyang-wen/dynet,clab/dynet,clab/dynet,danielhers/dynet,shuheik/dynet,danielhers/dynet,clab/cnn,xunzhang/dynet,shuheik/dynet,xunzhang/dynet,danielhers/dynet,danielhers/dynet,xunzhang/dynet,shuheik/dynet,clab/dynet,clab/dynet,chunyang-wen/dynet,danielhers/dynet,shuheik/dynet,clab/dynet,clab/cnn,clab/cnn,shuheik/dynet,clab/dynet,danielhers/dynet,chunyang-wen/dynet,shuheik/dynet,shuheik/dynet